OHB-2+/ OHB-3 is military equipments which can be viewed by two eyes and can be fixed on the mask.

OHB-2+/ OHB-3 is a kind of military equipments which can be viewed by two eyes and can be mounted with helmet,small in size,light in weight. Magnification can be changed by replacing different objective lens, 1x,3x and 4x are available.Other objective lens with different focal distance can be also provided to meet your needs.It also can be used as hand held Dim-light telescope.It adopts Russian Gen-super 2 and 3 image intensifier tube with the function of anti-glare and built-in IR Illuminator.It is mainly used for military observation,sea defence,frontier reconnaissance,surveillance, suppress smuggling, drug smuggling investigation and vehicles  and  aircraft maintenance under dark condition etc.

Specification

Generation	Super 2+	3
Magnication ,x	1x/3x/4x	1x/3x/4x
Field of view,deg	40/13	40/13
Detective range,m	220--360	800--1000
Eye relief distance	15	15
Diopter adjustment,deg	+5/-5	+5/-5
Dimension,mm	183x132x58	183x132x58
Weight,kg	0.50	0.50
Battery type	two 1.5V AA batteries	two 1.5V AA batteries
Power supply,v	3	3
Continuous working time,h	40---80	40--80
Photosensitivity, μ/lm	340-600	1500-1800
Gain,times	25000-30000	30000-40000
Resolution,lp/mm	45-57	57--70
Operating Temperature Range,	-40/+40	-40/+40

military equipments